the daughter's cousin
Your mother's aunt's husband's sister is your mother's aunts sister-in-law but is not related to you. Her son is not related to you either.
I ran a test in word processing using aunt, aunts, aunt's, and aunts' with the same combination of other words. The system put them in this order: aunt, aunt's, aunts, aunts'. All the words I tried lined up in this same order. So, according to Microsoft, it is aunt's then aunts'.
aunts
husband
I remember your aunts and my sisterhood.
Oba-san = aunty (formal) it's mostly used for more elderly aunts or distant (less familiar) aunts. Oba= aunt (normal) Changing it to 'chan' makes it more casual.
Your aunts and uncles are the sisters and brothers of your parents. So they are "blood related." But you also call the husband of your mother's sister your uncle, and he is not "blood related." So aunts and uncles are not always really related to you.
Yes, it should be, it is not considered incest because it is not by blood. You are marrying your aunt's HUSBAND'S daughter.
Hades is Persephone's husband, Zeus and Demeter are her parents. Persephone's aunts and uncles are Hestia, Hera, Poseidon and Hades.
Mother: Demeter Father: Zeus Uncle/Husband: Hades Uncle: Poseidon Aunts: Hera, Hestia
young husband